CSV Import+Export is an Excel add-in which adds the ability to import and export CSV files.
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Open a blank worksheet on Excel Online. Go to Insert | Office Add-ins. On the top right hand corner under Manage My Add-ins, click Upload my Add-In. Upload
manifests/dev.manifest.xml. -
Run the following commands to start webpack-dev-server.
npm i
npm run devServer
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Go to
https://localhost:3000/and accept the self-signed certificate if the untrusted certificate warning appears. -
Go back to Excel and open CSV Import+Export.
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Having both the published version and your dev version of CSV Import+Export installed can get confusing. I recommend removing the published version so you know which one you are working on.